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Hertel - Spiral Point Tap: 1/4-28 UNF, 2 Flutes, Plug, 3B Class of Fit, High Speed Steel, TiN Coated - 41113663 - MSC Industrial Supply
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IRWIN 80232 - Hanson Fractional Tap and Drill Bit Set (1/4"-28 NF Tap, No. 3 Drill Bit) - Walmart.com
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Century Drill & Tool 1/4-28 National Fine Carbon Steel Tap-Plug and #3 Wire Gauge Drill Bit - McCabe Do it Center
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1/4''-28 UNF Tap And Die Set HSS Right Hand Thread Tap Round Die For Metalworking Repairing Tapping Drilling Hand Manual Tools - AliExpress
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uxcell 1/4-28 UNF Straight Flute Tap Left Hand and 5.4mm Twist Drill Bit Set, Titanium Plated High Speed Steel Drilling Bit Machine Threading Tap - Amazon.com
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